Boone, Crustacea, Cruise of ''Alva," 1931 175 



chelles, Etiole Island, 13 fms., Rodriguez Island, (Miers) ; Seychelles : 

 Salomon, Carjados Carajos, 28 fms., Saya de Malha, 26 fms. to 29 

 fms., Coetivy, (Rathbun) ; Nosse Be, Madagascar, (Lenz and Richt- 

 ers) ; Mozambique, (Stebbing) ; Natal, (Krauss) ; Natal coast, (Steb- 

 bing) ; Zanzibar, (Pfeffer). 



Material examined : One male, Temukus Roads, Bali, Dutch East 

 Indies, October 25, 1931. One female, with the one side of the cara- 

 pace much more convex than the other side, Temukus Roads, Bali, 

 Dutch East Indies, Oct. 25, 1931. Five males and four ovigerous fe- 

 males, taken in coral at Teviatoa Reef, Raiatea Islands, Society Islands, 

 August 21, 1931. One ovigerous female, Teviatoa Reef, Society Islands, 

 August 21, 1931. (Broken specimen.) Eleven males and ten oviger- 

 ous females, taken on Venus Point Reef, Tahiti, Society Islands, Au- 

 gust 15, 1931. Three ovigerous females and three males, Ingram Reef, 

 Queensland, Australia, October 12, 1931. 



Color: "Carapace chestnut brown, excepting sometimes a border 

 along the front and behind the eyes, which is often pale green, white or 

 greyish white. Legs brown, also pale yellow, approaching pale flesh 

 red, with the front margin sometimes brown." (Dana). 



Technical description: Carapace lenticular, smooth, shiny, 

 slightly convex, very rarely with sparse fine pubescence near the fron- 

 tal and lateral borders; with the regions not at all defined; length 

 equal to about five-sixths of the maximum width. The frontal margin 

 is wide, equal to about three-fifths of the maximum width of the cara- 

 pace, very slightly bowed, microscopically dentate with fine, brown 

 saw-teeth, and in the majority of the specimens before me, is usually 

 set apart by a slightly shallow emargination from the equally denticu- 

 late preorbital angle. The orbital margin is smooth, unbroken, the 

 postorbital angle obtuse; the lateral margins are widely convex; the 

 anterolateral and postlateral margins confluent without any indication 

 of separation ; no lateral spine present ; the posterior margin is a trifle 

 concave, almost straight; the pterygostomian region is smooth. The 

 female belt is seven-segmented, widely oval, subcircular, the seventh 

 segment being the largest of the series, and widely rounded on the dis- 

 tal margin. The brood pouch is capacious, a specimen of average size 

 carrying two to three hundred eggs. The male belt is narrow, seven 

 segmented, triangular, with the tip broadly rounded. 



Chelipeds distinctly unequal in both sexes, the right one being much 

 the larger ; the merus is short, compressed, with the inner distal mar- 

 gin finely serrate ; the carpus is rounded, smooth ; the propodus is two 



